1. Department of Psychiatry and Psychotherapy, University of Tübingen, 72076 Tübingen, Germany
2. Department for Biomedical Magnetic Resonance, University of Tübingen, 72076 Tübingen, Germany
3. Functional Imaging Group, Department for Diagnostic Radiology and Neuroradiology, University of Greifswald, 17475 Greifswald, Germany
4. Department of Psychology, Technical University Chemnitz, 09111 Chemnitz, Germany
5. Department of Psychology, University of Bamberg, 96045 Bamberg, Germany